1021102120002 has 64 divisors (see below), whose sum is σ = 2086460613504. Its totient is φ = 333067438080.

The previous prime is 1021102120001. The next prime is 1021102120021. The reversal of 1021102120002 is 2000212011201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021102120002.

It is not an unprimeable number, because it can be changed into a prime (1021102120001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142270638 + ... + 142277814.

It is an arithmetic number, because the mean of its divisors is an integer number (32600947086).

Almost surely, 2^{1021102120002} is an apocalyptic number.

1021102120002 is an abundant number, since it is smaller than the sum of its proper divisors (1065358493502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021102120002 is a wasteful number, since it uses less digits than its factorization.

1021102120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021102120002 its reverse (2000212011201), we get a palindrome (3021314131203).

The spelling of 1021102120002 in words is "one trillion, twenty-one billion, one hundred two million, one hundred twenty thousand, two".